positive feedback triggers the anterior pituitary to release more FSH and LH. more FSH and LH cause the ovary to produce more estrogen. the ensuing LH surge is responsible for ovulation.
Winston-Salem Average Weather. 1  The highest monthly average temperature in Winston-Salem for August is 78 degrees. 2  The lowest monthly average temperature in Winston-Salem for January is 42 degrees.  The most monthly precipitation in Winston-Salem occurs in June with 4.4 inches.
The weather in Salem is very similar to Portland, with a couple of exceptions. Ice storms tend to miss Salem as it is away from the Gorge, a major channel of weather that produces these conditions. Summer can be slightly hotter, but not significant. Winters are almost exactly the same, with the exception of the ice storms (above).